A “king tide” is an informal term to describe the high tides that usually occur during a new or full moon. Anglers can take advantage of this perfect alignment of Earth and moon—if they understand their surroundings.

Like their namesake, Costa’s new King Tide sunglasses lend a powerful advantage on the water. They’re available in two styles—King Tide 6, a six-base frame with a straighter wrap and King Tide 8, a full wraparound eight-base version. (“Base” refers to the curvature of the lens.)


Tech specs on both frames include removable side shields for optimal use on and off the water, shark-inspired anti-fog venting, top-of-the-line sweat management and the most advanced lens tech for on-water use.

We tried the King Tide 6 with the blue mirror polarized glass lens. For us the highlights are the rubber stoppers on the bridge of the nose, arms and top corners for a no-slip grip both when you’re wearing the shades or when they’re on the dash or any other surface—very smart. And during a trail run, the King Tide 6 lenses did not fog up thanks to the optimized airflow.

Of course, the lenses are polarized (all Costa lenses are) and absorb 100% of UV light. The C-Wall coating provides extra scratch resistance and a barrier that repels water, oil and sweat for easy cleaning.
The blue mirrored lenses are best for full sun on the open water and offshore. We demoed them on a kayak mission on the Great Lakes and found them very effective at cutting out glare and gauging depth levels in calm water.
Designed by Costa’s light spectrum experts to enhance colours, the multi-patented lenses also absorb harmful high-energy blue light (HEV). And we found that colour enhancement and clarity were improved even in overcast conditions.


We also appreciated the badass carry-case included with the sunglasses, which is like a mini Pelican, with straps.
All told, the King Tide is the only lens you need on the water or off.
Full details on the King Tide here.
Conservation News from Costa
Focused on conservation and driven by its community-based ethos, Costa’s Marlin Fly Project. is the first recorded billfish research mission completed on fly.

The Marlin Fly Project sends scientists to tag and capture data on one of the most incredible yet understudied striped marlin fisheries found on the planet in Mag Bay, Mexico. The project brought together some of the best fly anglers and guides from all around the world, as well as top billfish scientists, to work in tandem with the local community and successfully deploy 15 satellite tags on striped marlin in 24 hours.
In addition, Costa also brought a handful of conservation and community partners (including The Billfish Foundation, IGFA, and Indifly) to not only impact the fishery but also to leave a lasting impact on the local community that’s been connected to this unique ecosystem for so long.
The discoveries from this industry-leading campaign will help fill crucial data gaps and aid in local and global efforts to conserve this highly migratory species (HMS).
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